Bump protoc from 3.21.1 to 3.21.2

Bumps [protoc](https://github.com/protocolbuffers/protobuf) from 3.21.1 to 3.21.2.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](protocolbuffers/protobuf@v3.21.1...v3.21.2)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protoc
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -300,7 +300,7 @@ test {
 
 protobuf {
 	protoc {
-		artifact = "com.google.protobuf:protoc:3.21.1"
+		artifact = "com.google.protobuf:protoc:3.21.2"
 	}
 	generateProtoTasks {
 		all().each { task -> }